<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>工具类</title>
    <link rel="stylesheet" href="bootstrap.min.css">
</head>

<body>
    <div>
        <h2>文本</h2>
        <p class="text-left">Left aligned text on all viewport sizes.</p>
        <p class="text-center">Center aligned text on all viewport sizes.</p>
        <p class="text-right">Right aligned text on all viewport sizes.</p>

        <p class="text-sm-left">Left aligned text on viewports sized SM (small) or wider.</p>
        <p class="text-md-left">Left aligned text on viewports sized MD (medium) or wider.</p>
        <p class="text-lg-left">Left aligned text on viewports sized LG (large) or wider.</p>
        <p class="text-xl-left">Left aligned text on viewports sized XL (extra-large) or wider.</p>
    </div>
    <div>
        <h2>阴影</h2>
        <div class="shadow-none p-3 mb-5 bg-light rounded">无阴影</div>
        <div class="shadow-sm p-3 mb-5 bg-white rounded">小阴影</div>
        <div class="shadow p-3 mb-5 bg-white rounded">一般阴影</div>
        <div class="shadow-lg p-3 mb-5 bg-white rounded">大阴影</div>
    </div>
    <div>
        <h2>垂直对齐</h2>
        <table style="height: 100px;">
            <tbody>
                <tr>
                    <td class="align-baseline">baseline</td>
                    <td class="align-top">top</td>
                    <td class="align-middle">middle</td>
                    <td class="align-bottom">bottom</td>
                    <td class="align-text-top">text-top</td>
                    <td class="align-text-bottom">text-bottom</td>
                </tr>
            </tbody>
        </table>
    </div>
    <div>
        <h2>边框</h2>
        <img src="http://www.wdhznyy.com/data/images/product/20171207173343_764.jpg" alt="..." class="rounded-circle">
    </div>
    <div>
        <h2>颜色</h2>
        <p class="text-white bg-dark">.text-white</p>
        <p class="text-black-50">.text-black-50</p>
        <p class="text-white-50 bg-dark">.text-white-50</p>
    </div>
    <div>
        <h2>尺寸</h2>
        <div style="height: 100px; background-color: rgba(255,0,0,0.1);">
            <div class="h-25 d-inline-block" style="width: 120px; background-color: rgba(0,0,255,.1)">Height 25%</div>
            <div class="h-50 d-inline-block" style="width: 120px; background-color: rgba(0,0,255,.1)">Height 50%</div>
            <div class="h-75 d-inline-block" style="width: 120px; background-color: rgba(0,0,255,.1)">Height 75%</div>
            <div class="h-100 d-inline-block" style="width: 120px; background-color: rgba(0,0,255,.1)">Height 100%</div>
            <div class="h-auto d-inline-block" style="width: 120px; background-color: rgba(0,0,255,.1)">Height auto
            </div>
        </div>
    </div>
</body>

</html>
